// Copyright (C) 2016 the V8 project authors. All rights reserved.
// This code is governed by the BSD license found in the LICENSE file.
/*---
esid: sec-typedarray-buffer-byteoffset-length
description: >
  ToIndex(byteOffset) operations
info: |
  22.2.4.5 TypedArray ( buffer [ , byteOffset [ , length ] ] )

  This description applies only if the TypedArray function is called with at
  least one argument and the Type of the first argument is Object and that
  object has an [[ArrayBufferData]] internal slot.

  ...
  7. Let offset be ? ToIndex(byteOffset).
  8. If offset modulo elementSize ≠ 0, throw a RangeError exception.
  ...
includes: [testTypedArray.js]
features: [TypedArray]
---*/

function Test() {
    var buffer = new ArrayBuffer(16);

    var obj1 = {
      valueOf: function() {
        return 8;
      }
    };

    var obj2 = {
      toString: function() {
        return 8;
      }
    };

    var items = [
      [-0, 0, "-0"],
      [obj1, 8, "object's valueOf"],
      [obj2, 8, "object's toString"],
      ["", 0, "the Empty string"],
      ["0", 0, "string '0'"],
      ["8", 8, "string '8'"],
      [false, 0, "false"],
      [NaN, 0, "NaN"],
      [null, 0, "null"],
      [undefined, 0, "undefined"],
      [0.1, 0, "0.1"],
      [0.9, 0, "0.9"],
      [8.1, 8, "8.1"],
      [8.9, 8, "8.9"],
      [-0.1, 0, "-0.1"],
      [-0.99999, 0, "-0.99999"]
    ];

    testWithTypedArrayConstructors(function(TA) {
      items.forEach(function(item) {
        var offset = item[0];
        var expected = item[1];
        var name = item[2];

        var typedArray = new TA(buffer, offset);
        assert.sameValue(typedArray.byteOffset, expected, name + " byteOffset");
        assert.sameValue(typedArray.constructor, TA, name + " constructor");
        assert.sameValue(
          Object.getPrototypeOf(typedArray),
          TA.prototype,
          name + " prototype"
        );
      });

      // Testing `true`. See step 8
      if (TA.BYTES_PER_ELEMENT === 1) {
        var typedArray = new TA(buffer, true);
        assert.sameValue(typedArray.byteOffset, 1, "true => 1 byteOffset");
        assert.sameValue(typedArray.constructor, TA, "true => 1 constructor");
        assert.sameValue(
          Object.getPrototypeOf(typedArray),
          TA.prototype,
          "true => 1 prototype"
        );
      } else {
        assert.throws(RangeError, function() {
          new TA(buffer, true);
        }, "1 modulo elementSize ≠ 0, throws a RangeError");
      }
    });
}

// preheat
const NUMBER_OF_PREHEAT = 1;
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}

ArkTools.jitCompileAsync(Test);
assert.sameValue(ArkTools.waitJitCompileFinish(Test), true, '[JIT] JIT disabled.');

// test
const NUMBER_OF_TEST = 1; // or 2
for (let i = 0; i < NUMBER_OF_PREHEAT; i++) {
    Test();
}
